JPS53145483A - Semiconductor device and production of the same - Google Patents

Semiconductor device and production of the same

Info

Publication number
JPS53145483A
JPS53145483A JP5975877A JP5975877A JPS53145483A JP S53145483 A JPS53145483 A JP S53145483A JP 5975877 A JP5975877 A JP 5975877A JP 5975877 A JP5975877 A JP 5975877A JP S53145483 A JPS53145483 A JP S53145483A
Authority
JP
Japan
Prior art keywords
production
same
semiconductor device
junction faces
side face
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP5975877A
Other languages
Japanese (ja)
Inventor
Kohei Yamada
Koichiro Yamada
Manabu Matsuzawa
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP5975877A priority Critical patent/JPS53145483A/en
Publication of JPS53145483A publication Critical patent/JPS53145483A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To weaken the surface field strength of junction faces and increase dielectric strength by exposing the PN junction faces having the curvature of the circumferential edge aprt of base region on the inside side face of grooves and further making the angled formed by the junction faces and the inside side face less than 90°.
COPYRIGHT: (C)1978,JPO&Japio
JP5975877A 1977-05-25 1977-05-25 Semiconductor device and production of the same Pending JPS53145483A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5975877A JPS53145483A (en) 1977-05-25 1977-05-25 Semiconductor device and production of the same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5975877A JPS53145483A (en) 1977-05-25 1977-05-25 Semiconductor device and production of the same

Publications (1)

Publication Number Publication Date
JPS53145483A true JPS53145483A (en) 1978-12-18

Family

ID=13122474

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5975877A Pending JPS53145483A (en) 1977-05-25 1977-05-25 Semiconductor device and production of the same

Country Status (1)

Country Link
JP (1) JPS53145483A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55130159A (en) * 1979-03-30 1980-10-08 Hitachi Ltd High withstand voltage semiconductor device and fabricating method of the same
US5072312A (en) * 1988-03-15 1991-12-10 Siemens Aktiengesellschaft Thyristor with high positive and negative blocking capability

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55130159A (en) * 1979-03-30 1980-10-08 Hitachi Ltd High withstand voltage semiconductor device and fabricating method of the same
US5072312A (en) * 1988-03-15 1991-12-10 Siemens Aktiengesellschaft Thyristor with high positive and negative blocking capability

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